Invalid use of incomplete type'class BLERemoteCharacterstic'

[MMIX2009]

Hi, I am getting this error message: Invalid use of incomplete type'class BLERemoteCharacterstic'

for the following code lines in the example sketches:

• myo.imu_notification(TURN_ON)->registerForNotify(imu_callback); in myo_imu_plot.ino
• myo.emg_notification(TURN_ON)->registerForNotify(emg_callback); in myo_emg_plot.ino
• myo.battery_notification(TURN_ON)->registerForNotify(batteryCallback); in myo_print.ino
• myo.gesture_notification(TURN_ON)->registerForNotify(gestureCallback); in myo_print.ino

Has anyone else seen this error message? I see the same error message when compiling with Arduino IDE 1.8.19 and 2.0.0 How do I fix it? Thanks.

[MMIX2009]

Adding additional context to my previous post: I was able trace the issue to Arduino's ArduinoBLE version 1.3.2. When installed, the Arduino IDE doesn't compile the Sparthan_Myo example sketches However, after downgrading to ArduinoBLE version 1.3.1, sketches compiled successfully.